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MAX9814ETD Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX9814ETD Datasheet(HTML) 2 Page - Maxim Integrated Products |
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2 / 14 page  Microphone Amplifier with AGC and Low-Noise Microphone Bias ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VDD = 3.3V, SHDN = VDD, CCT = 470nF, CCG = 2µF, GAIN = VDD, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. VDD to GND ..............................................................-0.3V to +6V All Other Pins to GND.................................-0.3V to (VDD + 0.3V) Output Short-Circuit Duration.....................................Continuous Continuous Current (MICOUT, MICBIAS).......................±100mA All Other Pins ....................................................................±20mA Continuous Power Dissipation (TA = +70°C) 14-Pin TDFN-EP (derate 16.7mW/°C above +70°C) ........................1481.5mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Lead Temperature (soldering, 10s) .................................+300°C Bump Temperature (soldering) Reflow............................+235°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS GENERAL Operating Voltage VDD Guaranteed by PSRR test 2.7 5.5 V Supply Current IDD 3.1 6 mA Shutdown Supply Current ISHDN 0.01 1 µA Input-Referred Noise Density en BW = 20kHz, all gain settings 30 nV/ √Hz Output Noise BW = 20kHz 430 µVRMS BW = 22Hz to 22kHz (500mVRMS output signal) 61 Signal-to-Noise Ratio SNR A-weighted 64 dB Dynamic Range DR (Note 2) 60 dB fIN = 1kHz, BW = 20Hz to 20kHz, RL = 10k Ω, VTH = 1V (threshold = 2VP-P), VIN = 0.5mVRMS, VCT = 0V 0.04 Total Harmonic Distortion Plus Noise THD+N fIN = 1kHz, BW = 20Hz to 20kHz, RL = 10k Ω, VTH = 0.1V (threshold = 200mVP-P), VIN = 30mVRMS, VCT = 2V 0.2 % Amplifier Input BIAS VIN 1.14 1.23 1.32 V Maximum Input Voltage VIN_MAX 1% THD 100 mVP-P Input Impedance ZIN 100 k Ω GAIN = VDD 39.5 40 40.5 GAIN = GND 49.5 50 50.6 Maximum Gain A GAIN = unconnected 59.5 60 60.5 dB GAIN = VDD 18.7 20 20.5 GAIN = GND 29.0 30 30.8 Minimum Gain GAIN = unconnected 38.7 40 40.5 dB Maximum Output Level VOUT_RMS 1% THD+N, VTH = MICBIAS 0.707 VRMS Regulated Output Level AGC enabled, VTH = 0.7V 1.26 1.40 1.54 VP-P AGC Attack Time tATTACK CCT = 470nF (Note 3) 1.1 ms A/R = GND 1:500 A/R = VDD 1:2000 Attack/Release Ratio A/R A/R = unconnected 1:4000 ms/ms MAX9814 2 Maxim Integrated |
Similar Part No. - MAX9814ETD |
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